Estimate the sum or difference by rounding each number to the nearest ten.
A. 720
B. 718
C. 710
D. 700
Answer: C
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Provide an appropriate response.Perform the operation and simplify your answer: 
What will be an ideal response?
Using the addition/subtraction method, find the value of x and y to satisfy the following equations: 2x + 3y = 3; 3x + 6y = 10
a. 1 1 x = -4Ä y = 3Ä 3 3 b. 1 2 x = 4Ä y = 2Ä 2 3 c. 2 x = -4 y = 3Ä 3 d. x = -4 y = 3 e. 2 x = 4 y = -3Ä 3
Find the second-order partial derivative.Find fyy when f(x, y) = x ln (y - x).
A. - 
B. - 
C. 
D. 
Use the given feasible region determined by the constraint inequalities to find the maximum and minimum of the objective function 
.
A. maximum value ofC: 60 at 
; minimum value ofC: 30 at 
B. maximum value ofC: 60 at 
; minimum value ofC: 35 at 
C. maximum value ofC: 55 at 
; minimum value ofC: 0 at 
D. maximum value ofC: 60 at 
; minimum value ofC: 0 at 
E. maximum value ofC: 55 at 
; minimum value ofC: 30 at 